Beater and mixer.



H. p. ROBERTS. HEATER AND MIXER. APPLIOATION IILEI JUNE 22, 1912.

- Patented July 29, 1913.

roetan ular oNiTn sTATEs PATE T oFro."

HENRY P. ROBERTS, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO DORSEYllVlAlfl'UFACv TUBING COMPANY, OF BOSTON, MASSACHUSETTS, A. CORPORATIONOF MASSACHU- SETTS.

Specification of Letters Patent.

BEATER AND .MIXER.

Patented July 29,1913.

To all 'Llf/LOIH I may concern Be it known that I, llnxnr P. Romnrrs,oi" lloston, in the county of Suffolk and State of Massachusetts, haveinvented eertain new and useful Improvements in Beaters and Mixers, ofwhich the following isa specification.-

This invention relates to an improvement in beaters and mixers for eggs,beverages and t'he like.

The objectol the invention is to improve the construction of devices ofthis character as heretofore manufactured, and more partieul.:irly themanner in which the knob at the upper end of mounted thereon.

With the above"ob ieet in view, the invention consists in thebeater andmixer hereinal'ter described and particularly defined the mixer stem isin the claim, the advantages. of which will zontal section taken on theline -l--l in Fig.

and Fig. 5 a central vertical section of the operating knob. I

As illustrated in the drawing, the device counn ises a-spiral stem- 110,substantially Viiicross-sect ion, to the lt'riye'r end fortimnfiu's;'dashelr atlixed. rslie'r ,is made of sheet/ nfetal, sub- "a lycircular. in "'t'oriiffnii ilrox ided ill-1- a jserit. eilij-apllaturps' .lilades' l-ti (Extentloutavziidly antl. upu'aril'lyat the per pl'ery, said"'bla (les'being preferably integl-al with the body portion ofthe dasher. .'lhe dasher. is so shaped that it 1ll conveniontly litwithin a suitablereceptacle 18, the latterbeingadapted to lit \\'ithin acover 20.

The cover 20 is formed Witha central depression 22, the bottom of whichis provided with a rectangular guidin aperture .24, the latter beingadapted to receive the .stem 10. An operating knob 26 is rotatablymounted at the upper end of the stem 10. In attachlng the knob to theupper end of 'the stem as heretofore'made, considerable difficulty wasexperienced in rendering the knob easily rotatable. I have thereforedevised a new way of mounting the knob which forms an essential part ofmy present; invention This is accomplished by forming the upper end ofthe stem '10 with a sh nk 28, which is reetangula: in cross-section andnarrower than the body of the stem, thus providinga pair of shoulders'BOupon which a washer 232 is supported. This washer loosely surrounds theshank 2S and forms a support for the knob 26. A hollow rivet Ellis diven tightly upon the shank 28 Within the knob to provide a journal forthe knob, said rivet having a head 36 which engages the top of the knobto hold' it in place. The rivet body fits the bore of the knob looselyand extends a considerable distance into the same, so that the knobported to rotate freely.

What I claim is:

in a device of the character described, a stem provided at its upper end\yi-th a reis supdueed shank, a.holloiFeylindrical riyet havi'i'ng; ahead, said PLYG'U being drn'en upon sabd :shank, and a knob rotatableabout said rivet,.

lui test stem. p

whereof l have affixed my signature, in preseiice oiitwo Witnesses.

CHARLES lV. Swn'rr,

bus. F. I'IOWE.

